ATLAS VIRTUAL DE LA AVIFAUNA TERRESTRE DE LA PENÍNSULA IBÉRICA

This is a great new (for me at least) on-line and interactive atlas from the already superb Enciclopedia virtual de los vertebrados españoles put togther by the Museo Nacional de Ciencias Naturales and Sociedad Española de Ornitología : :

You can create distribution maps (one complaint they could be more detailed...I imagine with time vthey wil be) of all Spanish birds by common castilian and latin names. So here for example is the map for azure-winged magpie.(iberianature)

You can also create indexes of biodiversity (for example average number of species per 100Km2), and a long list of envirnonemental factors. (for example Rango altitudinal, Precipitación anual,
Temperatura media anual, Porcentajede la superficie cubierta por Cultivos de Secano, Porcentajede la superficie cubierta por Viñedos, Porcentajede la superficie cubierta por Olivares, Porcentajede la superficie cubierta por areas Agropecuarias Arboladas (Campiñas, Dehesas, Fresnedas; Porcentajede la superficie cubierta por Roquedos masivos; Porcentajede la superficie cubierta por Marismas; Kilómetros de Autovías y Autopistas, etc,)

Olive distribution in Spain. See Olive farming. olives and oil in Spain

Coniferous forest in Spain

And you take 2-6 of these maps and compared them together: I did this fairly obvious one: marshes and marsh harrier distribution. (but then again maybe the results are not so obvious, but that might be a problem of scale. For example, there appear to be a lot of marsh harrier in the nothern sub-meseta which is thin on the ground in marsh - but has plenty of rivers)